Cerium Incorporated Nanocrystalline ZSM-5: An Efficient Catalyst for Friedel Crafts Acylation of Toluene

被引：2

作者：

Farsana, O. R. ^{[1
]}

Kumari, Prajitha ^{[1
]}

Aneesh, P. ^{[2
]}

机构：

[1] Pocker Sahib Mem Orphanage Coll, Tirurangadi Rd, Tirurangadi 676306, Kerala, India

[2] St Josephs Coll Autonomous, Kozhikode 673008, Kerala, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2020年 / 20卷 / 09期

关键词：

Catalyst; Cerium Incorporation; Zeolite ZSM-5; Friedel Crafts Acylation; Toluene; RARE-EARTH; ACETIC-ANHYDRIDE; ZEOLITE CATALYST; TERT-BUTYLATION; HZSM-5; ZEOLITE; PARTICLE-SIZE; PERFORMANCE; ACIDITY; ANISOLE; H-ZSM-5;

D O I：

10.1166/jnn.2020.17811

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, the application of cerium modified nanocrystalline zeolite ZSM-5 as catalyst for Friedel Crafts acylation of toluene was investigated and compared with nanocrystalline ZSM-5. The acylating agent used was acetic anhydride. The zeolite samples were characterized by means of Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), Thermal analysis, ammonia temperature-programmed desorption (NH3-TPD) and Nitrogen sorption analysis. The results show an enhanced Lewis acidity, pore volume and surface area for cerium modified ZSM-5 providing a superior accessibility for acetic anhydride and toluene to the active sites compared to the unmodified one, thereby leading to 93% conversion of acetic anhydride, which was higher than that of unmodified ZSM-5 sample.

引用

页码：5823 / 5832

页数：10

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